Coloring of master brake cover accessories (CNC products) using the anodizing method with natural mangosteen peel dye (A. B. Wicaksono, N. Faisal Arif, & A. Vicky Teno , Trans.). (2026). Proceeding SNTTM BKS-TM Indonesia, 23(1), 73-79. https://doi.org/10.71452/5kpe3649